Trap for pumping-wells



Patented Aug. I6, |898.

H. ETHERIDGE. TRAP FUR PUMPING WELLS.

` (Application led Feb. 23, 1898.)

(No Modal.)

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v Nrn l STATES`- PATENT TRAP FoR PUMPING-WELLS.

SPECIFICATION forming part of Letters Patent No. 609,269, dated August16, 1898. Application filed February 23, 1898. Serial No. 671,366.(Normodel.)

useful Improvements in Traps for Pumping# WVells, of which the followingis a specification. v

This invention relates to certain new and useful improvements in trapsfor`pumping-- wells.

The invention has for its object the provision of a new and novel meanswhereby sand deposits within water or other wells may be trapped andseparated from the water, thus allowing a pure and constant supply ofwater to the pump. In deep wells Where cylindrical strainers areemployed the sand deposits gradually work into .the openings orperforations of the strainer, where they become lodged, prevent afullsupply ofwater, and iinally require the strainer to be withdrawn,cleaned, and replaced. Therefore my object is to provide a device inwhich these disadvantages are overcome.l

lVith the above object in View the invention nally consists in the novelconstruction, combination, and Varrangements of parts, as will behereinafter more specifically described in detail.

In describing the invention in detail reference is had to theaccompanying drawings, forming a part of' this specification, andwherein like numerals of'reference designate like parts throughout theseveral views, in which- Figure 1 is a vertical side view of myiinproved sand-trap'arranged within a well. Fig. 2 is a verticalsectional view of the same. Fig. 3 is a sectional the line a ac of Fig.l.

Referring to the drawings, the numeral l designates a metal cylinder ortube which is of such diameter as that of the well. This cylinder has athread formed around its upper end and screwed tightly into the head 2.A number of small perforations 3 are formed through the cylinder, whichextend around the periphery of said cylinder. A plain metal cylinder et,having its outer diameter a trifle less than the interior diameter ofthe aforesaid outer cylinder, is provided. This plan view of the same one extends down through the plain cylinder to the lower endof the sameand is held to the cylinder at its .top bythe strap l0, which isarranged around the collar portion 5. A number of small perforations 1lis formed near the lower end of this tube or suctionpipe extension, `andto the extreme end is secured the cap 12.

A plain cylinder 13 of greater diameter than that of the tube 9, butless than the interior diameter of the cylinder 4t, is provided. Thiscylinder is closed'at its lower end by the head or cap 14 and isconnected to the aforesaid cap l2 of thesuction-pipe by the set-screw15, and the height of this cylinder is such that it will extend from thebottom up along the line of perforations of the outer cylinder, so as toform a safe trap; and in order to keep this cylinder in position atequal distance all the way around the tube 9 I employ theinwardlyextended bars or arms 16, which are made fast to the cylinder.This device, when inserted within the bottom of the well and connectedup to the suction-pipe, would operate in the following manner: The watersurrounding the outer cylinder l would be prevented from rushing oriiooding through the perforation, as the inner water-level is lowered byvirtue of the cylinder 4 damming said ows or waterfalls as `wouldordinarily take place through these perforations were the laforesaidcylinder or darn 4 removed, or, in other words, there would be nowaterfall or flooding through any of the perforations whatsoever, andconsequently no sand would be drawn through, as the action of thecylinder fi acts as a dam to the water that would ordinarily floodthrough these perforations and would result in the whole body of waterIOO surrounding the cylinder 1 to be gradually lowered, and therebyprevent any disturbance of the sand surrounding this perforatedcylinder. The cylinder 13, again, prevents any disturbance of the water,for the reason that it is caused to rise several feet before it againdescends to ascend in the tube or suctionpipe extension 9.

It will be readily apparent that by causing the water in the well torise and fall, as described, and indicated by the arrows at Fig. 2, thewater will practically be free from all sand and other extraneous matterbefore reaching the pump-barrel.

Slight modifications may be made in the construction of this devicewithout departing from the general principles involved in the invention,such as perforating the entire surface of the outer cylinder from top tobottom and the cylinders 4 and 13 adjusted to suit such a condition.

Having thus fully shown and described my invention, what I claim as new,and desire to secure by Letters Patent, is-

1. Atrap for water or other Wells, comprising a pump-tube having itslower end perforated, a trap-cylinder surrounding the said pump-tube andwhich is closed at its lower end and extends a suitable distance abovethe said perforated portion of the pump-barrel leaving a lwater-spacebetween them, a damcylinder extending a suitable distance above andsurrounding the aforesaid trap-cylinder with water-space between them,and an outer perforated cylinder surrounding the said damcylinder withwater-space between them, all arranged and combined to operatesubstantially as described.

2. A trap for water or other wells, com prising a pump-tube having itslower end perforated; a trap-cylinder surrounding the said pump-barreland which is closed at its lower end and extends a suitable distanceabove the said perforated portion of the pump-tube leaving a water-spacebetween them, a damcylinder incasing the aforesaid trap-cylinder, andclosed at its upper end around the pumpbarrel and extending a suitabledistance above the aforesaid trap-cylinder leaving a waterspace betweenthem, and an outer perforated cylinder surrounding the said dam-cylinderwith water-space between them, all arranged and combined to operatesubstantially as specified.

3. A trap for water or other wells comprising a pump-tube having itslower end perforated, a trap-cylinder surrounding the said pump-barreland which is closed at its lower end and extends a suitable distanceabove the perforated portion of the pump-barrel leaving a water-spacebetween them, a damcylinder inclosing the aforesaid cylinder and closedat its upper end around the pump-barrel and extending a suitabledistance above the aforesaid cylinder, leaving a water-space betweenthem, and an outer perforated cylinder inclosing the said dam-cylinderand which is closed at its top around the pumptube leaving a water-spacebetween it and the dam-cylinder with perforations, all arranged andcombined to operate substantially as specified.

Signed by me, at McKeesport, Pennsylvania, this 111th day of February,1898.

HARRY ETHERTDGE.

Witnesses:

R. C. RANKIN,v E. L. MAY.

